: Regular updates are critical for patching vulnerabilities and ensuring the TV doesn't become obsolete as streaming services update their protocols. How to Update or Reflash
The firmware for 40-MS801A-MAC2HG is not interchangeable with MS801A boards ending in other suffix codes (e.g., MAC1HG, MAC3HG). Using the wrong variant may result in upside-down image, no backlight, or dead audio. 40-ms801a-mac2hg firmware
Updates can be performed wirelessly via the "System Update" menu under Settings. USB Manual Update: Technical recovery often requires a manual flash using a Update.img file placed on a USB drive. Functionality: : Regular updates are critical for patching vulnerabilities